diff --git a/server/web3bcspider/services/erc721_refresher.js b/server/web3bcspider/services/erc721_refresher.js
index 0da7c60..5f3ae01 100644
--- a/server/web3bcspider/services/erc721_refresher.js
+++ b/server/web3bcspider/services/erc721_refresher.js
@@ -115,9 +115,11 @@ class Erc721Refresher extends BaseService {
   }
 
   async updateConfirmed(newOwner, blockNumber, row) {
+    const logHead = this.genLogHead('updateConfirmed ');
+    const tokenId = row['token_id'];
     const {err, nftDbConn} = await app.getDbConn(constant.BCNFTDB_NAME);
     if (err) {
-      log.error('updateConfirmed:' + this.tokenId + ' err:' + err);
+      log.error(logHead + tokenId + ' err:' + err);
       return false;
     }
     try {
@@ -137,7 +139,7 @@ class Erc721Refresher extends BaseService {
             ['confirm_block_number', blockNumber]
           ]);
         if (err) {
-          log.error('updateConfirmed:' + this.tokenId + ' err:' + err);
+          log.error(logHead + tokenId + ' err:' + err);
           return false;
         }
       }
@@ -148,9 +150,11 @@ class Erc721Refresher extends BaseService {
   }
 
   async tokenIsExists(rawRow) {
+    const logHead = this.genLogHead('tokenIsExists ');
+    const tokenId = rawRow['token_id'];
     const {err, nftDbConn} = await app.getDbConn(constant.BCNFTDB_NAME);
     if (err) {
-      log.error('updateConfirmed:' + this.tokenId + ' err:' + err);
+      log.error(logHead + tokenId + ' err:' + err);
       return false;
     }
     try {
@@ -163,7 +167,7 @@ class Erc721Refresher extends BaseService {
             ['contract_address', rawRow['contract_address']],
           ]);
         if (err) {
-          log.error('updateConfirmed:' + this.tokenId + ' err:' + err);
+          log.error(logHead + tokenId + ' err:' + err);
           return false;
         }
         if (row) {